Using netif_info() before the net_device is registered results in ugly
messages like the following:
sfc 0000:01:00.1 (unnamed net_device) (uninitialized): Solarflare NIC detected
Therefore use pci_info() et al until net_device is registered.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

All callers pass 0 as offset. Therefore remove the parameter and use a
fixed offset 0 in pci_vpd_find_tag().

Link: https://lore.kernel.org/r/f62e6e19-5423-2ead-b2bd-62844b23ef8f@gmail.comSigned-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>

All UDP tunnel port management is now routed via udp_tunnel_nic
infra directly. Remove the old callbacks.
Reviewed-by: NAlexander Duyck <alexanderduyck@fb.com>
Reviewed-by: NJacob Keller <jacob.e.keller@intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Necessitates an .ndo_features_check, as the EF10 datapath has several
 limitations on what it can handle.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Per-module versions for in-tree drivers are deprecated.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Originally there were several implementations of PHY operations for the
 several different PHYs used on Falcon boards.  But Falcon is now in a
 separate driver, and all sfc NICs since then have had MCDI-managed PHYs.
Thus, there is no need to indirect through function pointers in
 efx->phy_op; we can simply call the efx_mcdi_phy_* functions directly.

This also hooks up these functions for EF100, which was previously using
 the dummy_phy_ops.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

No TX or RX path, no MCDI, not even an ifup/down handler.
Besides stubs, the bulk of the patch deals with reading the Xilinx
 extended PCIe capability, which tells us where to find our BAR.

Though in the same module, EF100 has its own struct pci_driver,
 which is named sfc_ef100.

A small number of additional nic_type methods are added; those in the
 TX (tx_enqueue) and RX (rx_packet) paths are called through indirect
 call wrappers to minimise the performance impact.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Now that BPF program/link management is centralized in generic net_device
code, kernel code never queries program id from drivers, so
XDP_QUERY_PROG/XDP_QUERY_PROG_HW commands are unnecessary.

This patch removes all the implementations of those commands in kernel, along
the xdp_attachment_query().

This patch was compile-tested on allyesconfig.
Signed-off-by: NAndrii Nakryiko <andriin@fb.com>
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200722064603.3350758-10-andriin@fb.com

Check MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_TRUSTED, before setting
the info, which will hopefully protect us from -EPERM errors
the previous code was gracefully ignoring. Ed reports this
is not the 100% correct bit, but it's the best approximation
we have. Shared code reports the port information back to user
space, so we really want to know what was added and what failed.
Ignoring -EPERM is not an option.

The driver does not call udp_tunnel_get_rx_info(), so its own
management of table state is not really all that problematic,
we can leave it be. This allows the driver to continue with its
copious table syncing, and matching the ports to TX frames,
which it will reportedly do one day.

Leave the feature checking in the callbacks, as the device may
remove the capabilities on reset.

Inline the loop from __efx_ef10_udp_tnl_lookup_port() into
efx_ef10_udp_tnl_has_port(), since it's the only caller now.

With new infra this driver gains port replace - when space frees
up in a full table a new port will be selected for offload.
Plus efx will no longer sleep in an atomic context.

v2:
 - amend the commit message about TRUSTED not being 100%
 - add TUNNEL_ENCAP_UDP_PORT_ENTRY_INVALID to mark unsed
   entries
Signed-off-by: NJakub Kicinski <kuba@kernel.org>
Acked-By: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The method struct pci_error_handlers.error_detected() is defined and
documented as taking an 'enum pci_channel_state' for the second argument,
but most drivers use 'pci_channel_state_t' instead.

This 'pci_channel_state_t' is not a typedef for the enum but a typedef for
a bitwise type in order to have better/stricter typechecking.

Consolidate everything by using 'pci_channel_state_t' in the method's
definition, in the related helpers and in the drivers.

Enforce use of 'pci_channel_state_t' by replacing 'enum pci_channel_state'
with an anonymous 'enum'.

Note: Currently, from a typechecking point of view this patch changes
nothing because only the constants defined by the enum are bitwise, not the
enum itself (sparse doesn't have the notion of 'bitwise enum'). This may
change in some not too far future, hence the patch.

[bhelgaas: squash in
  https://lore.kernel.org/r/20200702162651.49526-3-luc.vanoostenryck@gmail.com
  https://lore.kernel.org/r/20200702162651.49526-4-luc.vanoostenryck@gmail.com]
Link: https://lore.kernel.org/r/20200702162651.49526-2-luc.vanoostenryck@gmail.comSigned-off-by: NLuc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>

While we're at it, also check them for failure.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Instead of exposing this old module parameter on the new driver (thus
 having to keep it forever after for compatibility), let's confine it
 to the old one; if we find later that we need the feature, we ought
 to support it properly, with ethtool set-channels.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

EF100 only supports MSI-X, so there's no need for the new driver to
 expose this old module parameter.
Since it's now visible to the linker, we have to rename it internally
 to efx_interrupt_mode to avoid symbol collisions in non-modular
 builds.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Unprivileged functions (such as VFs) may set their MTU by use of the
 'control' field of MC_CMD_SET_MAC_EXT, as used in efx_mcdi_set_mtu().
If calling efx_ef10_mac_reconfigure() from efx_change_mtu(), and the
 NIC supports the above (SET_MAC_ENHANCED capability), use it rather
 than efx_mcdi_set_mac().
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Various left-over bits and pieces from efx.c that are needed by ef100.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

EF100 will use the same mechanisms for PCI error recovery.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

EF100 needs to map multiple BARs (sequentially, not concurrently) in
 order to read the Function Control Window during probe.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/sfc/efx.c:116:38: warning:
 efx_default_channel_type defined but not used [-Wunused-const-variable=]

commit 83975485 ("sfc: move channel alloc/removal code")
left behind this, remove it.
Reported-by: NHulk Robot <hulkci@huawei.com>
Fixes: 83975485 ("sfc: move channel alloc/removal code")
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Acked-by: NMartin Habets <mhabets@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove duplicated include.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Includes a couple of filtering functions and also renames a constant.

Style fixes included.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Functions are not related.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Style fixes included.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A few bits were extracted from other functions.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The moved code handles MCDI port link state and capabilities.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The moved code deals with managing rx buffers and queues.
A tiny bit of refactoring was required in other files to stitch the
code together.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Small code styling fixes included.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Reallocation and copying code is included, as well as some housekeeping
code.
Other files have been patched up a bit to accommodate the changes.

Small code styling fixes included.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Also includes interrupt enabling/disabling code.
Small code styling fixes included.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Just a handful of function, but also removed many 'static' identifiers
so the code builds. These will, of course, be moved.
Module parameters for IRQ moderation threshold also moved.

Small code styling fixes included.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The hardware monitor code and the reset work queue code were also
moved, with supporting macros and parameters, because they are assigned
to function pointers in the struct.
Small code styling fixes included.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The rest of the reset code will be moved later.
Small code styling fixes included.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The code that manages the datapath (starting, stopping, including the
port-related bits) will be common.
Three functions have been added that contain bits from other
functions. These will be moved to their final files in later patches.
Small code styling fixes included.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Two small functions with different purposes.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Small functions doing work that will be common, related to reset
workqueue management.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Added more arguments for a couple of functions.
Also moved a function to the common header.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

New headers contain prototypes of functions that will be common between
ef10 and upcoming driver.
Removed static modifier from the affected functions.
Some function prototypes were removed from existing headers.
Signed-off-by: NAlexandru-Mihai Maftei <amaftei@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>